Thats pretty crazy. Hopefully its just a fluke of a coincidence. I am a total believer in snake's and other reptiles ability to sense weather patterns and whatnot...last summer we had a few bad tstorms come through and noticed erratic behavior on the part of some the larger monitors we had at the time.

And flip to your situation, it was downpouring 2 weeks ago on my feeding night- lighting, thunder, heavy rain, you name it- not a single one of my guys refused. Go figure.